Siemens A50 User Manual

Also see for A50: Owner's manual Service manual

11SecurityThe phone and SIM card are protect-ed against misuse by several securi-ty codes and should be treated withthe same care as a cheque guaran-tee card. For further details see alsop. 59.§Menu§ Î Setup Î SecurityÎ then select a function:PIN controlThe PIN is usually requested eachtime the phone is switched on. Youcan deactivate this feature but yourisk unauthorised use of the phone.§Select§ Press.J Enter PIN.§OK§ Confirm entry.§Change§ Press.§OK§ Confirm.Some service providers do not per-mit this function.PIN * Protects your SIM card (personalidentification number).PIN 2 * This is needed to set the chargedetail display and to acces addi-tional functions on special SIMcards.PUK/PUK 2Key code. Used to unlock SIMcards after the wrong PIN hasbeen entered.Phone-code *Protects your phone. Must be en-tered at the first security setting.Keep these confidential numbers in asafe place where you can access them ifrequired.Change PIN *You can change the PIN to anynumber you may find easier to re-member.J Enter old PIN.§OK§ Press.J, §OK§ Enter new PIN.J, §OK§ Repeat new PIN.Change PIN2 *(display only if PIN 2 is available).Proceed as with Change PIN.Change phonecode *You define and enter the phone codewhen calling up a phone code pro-tected function (e.g. Babysitter, p. 17)for the first time. It is then valid for allfunctions.If you have forgotten it, please callSiemens Service (p. 67).* 4-8-digit numberRemove SIM card barringIf the PIN is entered incorrectly three timesthe SIM card is barred. Enter the PUK(MASTER PIN) provided by your serviceprovider together with the SIM cardaccording to instructions.If PUK (MASTER PIN) has been lost,please contact your service provider.